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Unified Diff: packages/analyzer/lib/source/embedder.dart

Issue 2990843002: Removed fixed dependencies (Closed)
Patch Set: Created 3 years, 5 months ago
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Index: packages/analyzer/lib/source/embedder.dart
diff --git a/packages/analyzer/lib/source/embedder.dart b/packages/analyzer/lib/source/embedder.dart
new file mode 100644
index 0000000000000000000000000000000000000000..f09ec1bf06e22f37dffe5db8f2b48fc7f08b297f
--- /dev/null
+++ b/packages/analyzer/lib/source/embedder.dart
@@ -0,0 +1,185 @@
+// Copyright (c) 2015, the Dart project authors. Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+@deprecated
+library analyzer.source.embedder;
+
+import 'dart:collection' show HashMap;
+import 'dart:core';
+import 'dart:io' as io;
+
+import 'package:analyzer/file_system/file_system.dart';
+import 'package:analyzer/source/package_map_provider.dart'
+ show PackageMapProvider;
+import 'package:analyzer/src/generated/java_io.dart' show JavaFile;
+import 'package:analyzer/src/generated/sdk.dart';
+import 'package:analyzer/src/generated/sdk_io.dart';
+import 'package:analyzer/src/generated/source.dart';
+import 'package:analyzer/src/generated/source_io.dart' show FileBasedSource;
+import 'package:analyzer/src/summary/idl.dart' show PackageBundle;
+import 'package:yaml/yaml.dart';
+
+export 'package:analyzer/src/context/builder.dart' show EmbedderYamlLocator;
+
+const String _DART_COLON_PREFIX = 'dart:';
+const String _EMBEDDED_LIB_MAP_KEY = 'embedded_libs';
+
+/// Check if this map defines embedded libraries.
+@deprecated
+bool definesEmbeddedLibs(Map map) => map[_EMBEDDED_LIB_MAP_KEY] != null;
+
+/// An SDK backed by URI mappings derived from an `_embedder.yaml` file.
+@deprecated
+class EmbedderSdk extends AbstractDartSdk {
+ final Map<String, String> _urlMappings = new HashMap<String, String>();
+
+ EmbedderSdk([Map<Folder, YamlMap> embedderYamls]) {
+ embedderYamls?.forEach(_processEmbedderYaml);
+ }
+
+ // TODO(danrubel) Determine SDK version
+ @override
+ String get sdkVersion => '0';
+
+ /// The url mappings for this SDK.
+ Map<String, String> get urlMappings => _urlMappings;
+
+ @override
+ PackageBundle getLinkedBundle() => null;
+
+ @override
+ String getRelativePathFromFile(JavaFile file) => file.getAbsolutePath();
+
+ @override
+ PackageBundle getSummarySdkBundle(bool strongMode) => null;
+
+ @override
+ FileBasedSource internalMapDartUri(String dartUri) {
+ String libraryName;
+ String relativePath;
+ int index = dartUri.indexOf('/');
+ if (index >= 0) {
+ libraryName = dartUri.substring(0, index);
+ relativePath = dartUri.substring(index + 1);
+ } else {
+ libraryName = dartUri;
+ relativePath = "";
+ }
+ SdkLibrary library = getSdkLibrary(libraryName);
+ if (library == null) {
+ return null;
+ }
+ String srcPath;
+ if (relativePath.isEmpty) {
+ srcPath = library.path;
+ } else {
+ String libraryPath = library.path;
+ int index = libraryPath.lastIndexOf(io.Platform.pathSeparator);
+ if (index == -1) {
+ index = libraryPath.lastIndexOf('/');
+ if (index == -1) {
+ return null;
+ }
+ }
+ String prefix = libraryPath.substring(0, index + 1);
+ srcPath = '$prefix$relativePath';
+ }
+ String filePath = srcPath.replaceAll('/', io.Platform.pathSeparator);
+ try {
+ JavaFile file = new JavaFile(filePath);
+ return new FileBasedSource(file, Uri.parse(dartUri));
+ } on FormatException {
+ return null;
+ }
+ }
+
+ /// Install the mapping from [name] to [libDir]/[file].
+ void _processEmbeddedLibs(String name, String file, Folder libDir) {
+ if (!name.startsWith(_DART_COLON_PREFIX)) {
+ // SDK libraries must begin with 'dart:'.
+ return;
+ }
+ String libPath = libDir.canonicalizePath(file);
+ _urlMappings[name] = libPath;
+ SdkLibraryImpl library = new SdkLibraryImpl(name);
+ library.path = libPath;
+ libraryMap.setLibrary(name, library);
+ }
+
+ /// Given the 'embedderYamls' from [EmbedderYamlLocator] check each one for the
+ /// top level key 'embedded_libs'. Under the 'embedded_libs' key are key value
+ /// pairs. Each key is a 'dart:' library uri and each value is a path
+ /// (relative to the directory containing `_embedder.yaml`) to a dart script
+ /// for the given library. For example:
+ ///
+ /// embedded_libs:
+ /// 'dart:io': '../../sdk/io/io.dart'
+ ///
+ /// If a key doesn't begin with `dart:` it is ignored.
+ void _processEmbedderYaml(Folder libDir, YamlMap map) {
+ YamlNode embedded_libs = map[_EMBEDDED_LIB_MAP_KEY];
+ if (embedded_libs is YamlMap) {
+ embedded_libs.forEach((k, v) => _processEmbeddedLibs(k, v, libDir));
+ }
+ }
+}
+
+/// Given the 'embedderYamls' from [EmbedderYamlLocator] check each one for the
+/// top level key 'embedded_libs'. Under the 'embedded_libs' key are key value
+/// pairs. Each key is a 'dart:' library uri and each value is a path
+/// (relative to the directory containing `_embedder.yaml`) to a dart script
+/// for the given library. For example:
+///
+/// embedded_libs:
+/// 'dart:io': '../../sdk/io/io.dart'
+///
+/// If a key doesn't begin with `dart:` it is ignored.
+///
+/// This class is deprecated; use DartUriResolver directly. In particular, if
+/// there used to be an instance creation of the form:
+///
+/// ```
+/// new EmbedderUriResolver(embedderMap)
+/// ```
+///
+/// This should be replaced by
+///
+/// ```
+/// new DartUriResolver(new EmbedderSdk(embedderMap))
+/// ```
+@deprecated
+class EmbedderUriResolver implements DartUriResolver {
+ EmbedderSdk _embedderSdk;
+ DartUriResolver _dartUriResolver;
+
+ /// Construct a [EmbedderUriResolver] from a package map
+ /// (see [PackageMapProvider]).
+ EmbedderUriResolver(Map<Folder, YamlMap> embedderMap)
+ : this._forSdk(new EmbedderSdk(embedderMap));
+
+ /// (Provisional API.)
+ EmbedderUriResolver._forSdk(this._embedderSdk) {
+ _dartUriResolver = new DartUriResolver(_embedderSdk);
+ }
+
+ @override
+ DartSdk get dartSdk => _embedderSdk;
+
+ /// Number of embedded libraries.
+ int get length => _embedderSdk?.urlMappings?.length ?? 0;
+
+ @override
+ Source resolveAbsolute(Uri uri, [Uri actualUri]) =>
+ _dartUriResolver.resolveAbsolute(uri, actualUri);
+
+ @override
+ Uri restoreAbsolute(Source source) {
+ String path = source.fullName;
+ if (path.length > 3 && path[1] == ':' && path[2] == '\\') {
+ path = '/${path[0]}:${path.substring(2).replaceAll('\\', '/')}';
+ }
+ Source sdkSource = dartSdk.fromFileUri(Uri.parse('file://$path'));
+ return sdkSource?.uri;
+ }
+}
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